Reinforced concrete structure.



T. H. SKINNER. REINFORCED GONGRETE STRUCTURE.

APPLICATION FILED APR. 19. 1909. 1,008,210. Patented N0v.7, 1911.

UNHED TATE PATIENT 'WEHEQE;

THEODORE H. SKINNEB, OF ONEIDA, NEW YORK, 'ASSIG'NOE TO ONEIDACOMMUNITY, LIMITED, OF ONEIDA, NEH ZOE-K, A CORPORATION OF NEW YORK.

REINFORCED CONCRETE STRUCTURE.

Specification of Letters Patent.

Patented Nov. 7, 1911.

Application filed April 19,1909. Serial No. 490,850.

forced Concrete' Structures, of which the following, taken in connectionwith the ac companying drawings, is a full, clear, and exactdescription.

This invention relates to certain improve ments in reinforced concretestructure as applied more particularly to concrete floors and beams attheir junctions with concrete columns.

The main object is to establish a cantaliver reinforcement in theconcrete column and floor at their junctions one with the other, byembedding portions of the reinforcing members in the column above andbeneath the plane of the floor and similarly embedding other portions ofthe same reinforcing members in the floor or beam some distance beyondthe vertical plane of the column during progressive building, so thatwhen the concrete is set to firmly retain the reinforcing members inplace, such members not only serve to resist shearing and tensilestrains upon the floor, but also serve to centralize such strains uponthe column where the pressure resistance is greatest, and to counteractthe bending strains on the floor at opposite sides of the column.Another ob'ect is to unite the ends of the lower and upper cantalivermembersor rods so as to transmit the bending-strains upon the floor andarms of the cantaliver reinforcement to the portion of the column above,as well as to that portion below, the plane of the floor.

A further object is to rigidly connect the column portions of thecantaliver reinforcing members so as to afiord additional re sistance tobending or deflection of the cantaliver arms, and at the same timeestablishing unity and symmetry. in the reinforcement.

In other words, 'the invention, briefly stated, consists in producing aunitary selfsustaining cantaliver reinforcement .of the open-workskeleton type, which is at once light, strong and durable and capable ofsustaining large floor areas and concentrating the strains from suchareas directly to and axially of the column:

Other objects and uses relating to specific parts of the invention willbe brought out in the following description.

In the drawings-Figure l is a top planv of a portion of a concrete floorand two columns showing two of my improved cantaliver reinforcementsembedded therein, one for each column. Fig. 2 is a vertical sectionalview through a portion of the floor andadjacent portions of the columnsex cept that the attaching members for the reinforcing arms and centersupporting rod are shown in the elevation. Figs. 3 and 4 are top planviews of modified forms of atcaching members. Figs. 5 and 6 aresectional views taken respectively on lines 5-5, Fig. 3, and 6-6, Fig.4.

In Figs. 1 and 2 I have shown a considerable section of a concrete floor1 as supported upon a plurality of, in this instance,

two concrete columns 2 which are spaced some distance apart to indicatethe relative positions of the cantaliver reinforcements which areembedded in the columns and floor, one for each column. Each of these'cantaliver reinforcements comprises an upright central supporting rodor tubular bar 3 a series of rings or spiders 4' constituting attachingmembers mounted upon and adjustable lerigthwise of the rod or bar 3, anda plurality of radially projectinp; reinforcing members 5- arranged inpairs equidistant apart around the central upright rod or bar 3, andhaving their ends connected to the attaching members l, the reinforcingmembers -5 of each pair being arranged diametrically opposite to eachother so as to produce a unitary cantaliver structure, with its axissubstantially coincident with that of the column. Although it isdesirable to arrange these reinforcing arms symmetrically or equidistantfrom each other around a. common axis coincident with that of thecolumn,

be tied together bya it is evident that this arrangement is notabsolutely necessary so long as such members are nearly equallydistributed 'around such axis; and in fact in some places, especially inthe direction of greatest span, additional reinforcing members -5- maybe installed at such side of the axis of the column during progressivebuilding. These attaching members, there-fore, constitute an importantfeature of my invention. and are preferably located Within thecross-sectional area of the eolunnmlnd above and beneath the plane ofthe floor l as clearly shown in- Fig. 2.

Each attaching member preferably consists of a central apertured hub anda series of radial arms spaced equidistant apart and corresponding innumber to the number of reinforcing members -5 which may be required,said arms being provided with apertures for receiving the upright endsof the reinforcing members -5- to hold the latter a'fixeddistance'apartand prevent their relative radial movement during progressive building of the concrete.

In some instances the outer ends of the arms of the attaching members-%l may circular band as shown in Fig. 3, but in all cases the arms arespaced apart to permit the concrete to be Worked through and around allparts of the attaching members and adjacent reinforcing members so as tofirmly embed the entire canta liver structure in the concrete.

For light or moderate loads each of the reinforcing members 5 mayconsist of a continuous Wire or metal rod or bar havmg its intermediateportion deflected later-- ally or horizontally a considerable distanceforming V-shape reinforcing arms and its ends extended vertically inopposite directions thii'ough alined apertures in the arms of theattaching members -4- so to hold the 'V-shape extensions -5 a fixeddistance apart circumferentially and later ally. These arms arepreferably intersected by a series of concentric rings 6 of Wire orsimilar comparatively light metal and are usually tied at theirintersections to said rings by any suitable fastening means, as tiewires -7-, which, in this instance, are extended diagonally back andforth across the \/'-sh'ape extensions or reinforcing members -5 therebyforming braces or truss members -8- which prevent in a measurecompression or distention of the opposite' sides of the ll-shapeextensions -5-.

The attachingmembers 4. which are adjustable vertically along the rod orbar -3-- during progressivebuilding to conforn'i to the position" atwhich it is desired to locate the cantaliver reinforcements, are held intheir adjusted. position by suitable building tions during suchprogressive building the forms, not shown, being; secured in properposition to receive 'umns and floor in Wlichthe reinforcing elementsbecome embedded. During this progressive building the retaining members,such as the attaching members --4-, together With the rings -6 serve toretain the reinforcing arms 5--, and parts sethe :oncrete for the col'cured thereto, in fixed relation to each other.

The portions of the arms -5- adjacent to the innermost attaching memberstare deflected rather abruptly, thereby preventing relative endwisemovement of said arms in the attaching members. In placing thesereinforcing arm 5 in position, the

attaching members 4- below the floor are first secured in place, afterwhich the down Wardly projecting; ends of the arms --5-- are inserted intheir corresponding apertures in their attaching members, leaving theupwardly projecting ends of said arms free to receive the attachingmembers above the floor, the latter members being then secured in properposition and tightened to hold the arms a fixed distance apartcircumferentially, and also to hold said arms against endwise movement.The rings 6- may be secured to the arms 5- either before or after thelatter are placed in position in the but it is evident that before theserings are permanently tied to the arms, the latter may be rocked oradjusted laterally in the attaching members lso as to position them thedesired distance apart according" to the requirements of the Work underWay.

lit may be understood from the foregoing description and the drawingsthat the attaching members of the cantaliver arms may be firmlyconnected together and positioned on the central rod -3 as a unitinstead of positioning the separate parts independently and when soassembled has the additional advantage that it may be allowed to settlewith the concrete in Which it is to be embedded during progressivebuilding.

What-I claim -is l. A. cantaliver reinforcement for con-- crete columnsand floors comprlsmg an upfloor, sai

ta-chine members mounted on the bar above t l plane of the floor, androlls embers and having their ion deflected aterally bed. into the l neof the in: meii'ihers rods being 'ftici in the lioo' and co mm duringpiig ldmg.

i reinforcement for conid l'loors comprising attachmg in d means forsupporting them 10. abve and below the olane co noination with rodshaving their en to said members and their intermediate portions extendedlaterally beyond the column into the plane of the members and rods beingembedded in concrete durin progressive building.

3. A can-tall. reinforcement for concrete columns and tioors comprisingattaching members arrang d one above the othersome distance apart aboveand beneath the plane of the iioor, means for holding the members insuch position reinforcing rods having their ends attached to 'saidmembers and their intermediateportions deflected laterally beyond thecolumn and into the plane of the floor forn'iing floor reinforcing armsthe opposite sides of each arm converging laterally from the column.

42. i cantaliver reinforcement for concrete columns and floorscomprising attaching members arranged one above the other some distanceapart above and beneath the planeof the'lioor, means for holding themembers in such' position, reinforcing rods having their ends attachedto said members and their intermediate portions deflected laterallybeyond the column and into the plane of the floor forming floorreinforcing arms, the opposite sides of each arm converging laterallyfrom the column, and cross connections between the opposite sides ofeach arm.

of the Pic:

A cantalivcr reinforcement for concrete columns'and floors comprisingattaching members arranged one above the other coaxial with the axis ofthe column in planes above and beneath the plane of the floor,supporting means for said members and floor reinforcing rodsl'iavingtheir ends at-' tached to said members and their intermediateportions deflected laterally beyond the column within the plane of thel'loor forming floor reinforcing arms, and connections between said armsalso in the plane of the fioor said attaching members, rods andconnections between the arms being embedded in concrete duringPYCQ'IQSSlYG buildin 6. A cantaliver reinioicci'nent for concretecolumns and tloors comprising attaching members and means for supportingthem in planes one above the other coaxial With the axis of the'columnabove and beneath the plane of the floor, floor reinforcing rodsarranged substantially equi-distant apart from said axis and having.their ends connected to said members and their intermediate portionsdeflected laterally beyond the column and Within the plane of the floorforming a series of radially projecting floor reinforc- 111G arms.

a. A cantaliver reinforcement for concrete columns and floors comprisingattachingi members and means for supporting them in planes one above theother coaxial with the axis of the column above and beneath the planeotfthefioor, floor reinforcing rods arranged substantially equi-di'stantapart from said axis and having their ends connected to said members andtheir intermediate portions deflected laterally beyond the column andwithin the plane of the floor forming a series of radially projectingfloor reinforcing arms, and additional floor reinforcing membersconnecting said arms.

8. A cantaliver reinforcement for concrete columns and floors comprisingattaching members and means for supporting them one above the othercoaxial with the axis of the column in planes above and beneath theplane of the floor, trussed arms arranged about said axis substantiallyequi-distant apart and having their ends attached to said members andtheir intermediate portions projecting laterally from the column Withinthe plane of the floor, said members and arms being embedded in theconcrete dur ing progressive building.

9. A cantaliver reinforcement for con crete columns and floorscomprising an'upright rod coainal with the axis of the column; attachingmembers slidable on said rod, and positioned respectively above andbeneath the plane of the floor, separate devices for-holding saidmembers in their ad-' coaxial with the axis or" the column in planesabove and beneath the plane of the floor, floor reinforcing rodsarranged about said axis and having their ends attached to said members,and their intermediate portions deflected laterally beyond the column inoutwardly converging lines forming a series of radial arms Within theplane of the floor, position, and trussed arms having their ends anddiagonal braces connecting opposite attached to said members portions ofsand sides of the arms whereby each arm becomes I arms progecting beyondthe column Within a trussecl reinforcement. the plane of the floor.

5 11. A cantaliver reinforcement for 0on In Witness whereof I havehereunto set 15 crete columns and floors comprising an upmy hand this12th clay or April 1909. right column reinforcing rod, attachingTHEODORE H. SKINNER. members sliclable on the rod above andbelVitnesses: neath the plane of the floor, means for hold- H. E. CHASE,

10 ing the attaching members in their adjusted J. M. Hons.

